If you are involved in the analysis of fragrances, aromas, off-odours and other volatile organic compounds you may well wish that you could target trace componants at the low ppb level. You may also want to work with larger samples, than the 10-20 ml samples that conventional headspace analysis permits. The Entech 7150 Concentrator can be used to trap and focus headspace and air samples up to 1 litre in volume and to inject the whole of this concentrated sample onto the GC column. When combined with the 7500 Large Volume Headspace Autosampler large headspace samples (up to 500 ml) can be readily analysed, giving ultra low detection limits for volatile (and some semi-volatile) componants. Compare this with the limitations imposed by having to work with samples of just a few grams, where wh...Read more
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